John b



. Patented Apr. 14, 1885.

LATCH.

J. R. SCOTT.

(N Modem www Vga.

UNITED STATES l PATENT OEEICECJ JOHN It. SCOTT, OF CHICAGO, ILLINOIS,ASSIGNOR OF ONE-HALF TO WILLIAM GERWIEN, OF SAME PLACE.

LATCH.

SPECIFICATION forming part of Letters Patent No. 315,845, dated April14, 18855.

Application led November 4,2884. (No model.)

To all whom it may concern:

Beit known that I, JOHN R. Scor'r, of Chicago, county of Cook, and Stateof Illinois, have invented certain new and useful Iznprovements inDoor-Latches, of which the following is a full, clear, andexactdescription, that will enable others to make and use the saine,reference being had to the accompanying drawings, forming a part of thisspecification.

This invention relates to improvements in` that class of latchesdesigned i'or use on sliding doors, the object being to provide a deviceof this character which may be used on doors of different thicknesses,and which Will dispense with the usual projecting knobs oroperating-handles. l

Figure lis a side elevation of a lock with the case-cap removed in orderto show the interior, the face-plate and striking-plate being insection. Fig. 2 is a transverse section in the plane x m, Fig. l; andFig. 3, an inside view of one of the escutcheon-plates, showing therelative position of the latch-lifting lever, Fig. 4, a view of theopposite side, and Fig. 5 a detached View of the angular lever.

Referring to the drawings, A represents the lock-ease; B, thelatch-bolt; C C', the angular levers for operating the saine; D, thefaceplate, and E the striking-plate. The latchbolt B lies in ahorizontal plane, and is secured in place at the back end by means ofthe pivot-post a, the front end of the latch projecting through theface-plate being pro-4 vided with the beveled catch a', which is adaptedto engage with the companion catch a? on the striking-plate. Fig. lshows the relative position of these parts when the doors are closed..The spring c" serves to retain the latch in a normal or locked position.

The latch-bolt B is provided with the elongated aperture c for thereception ofthe loose end of the spindles b b', which are attached toand proj ect inwardly from the horizontal part of the angular levers CC', and have a frictional engagement with said latch, whereby the sainemay be raised by pressing on the vertical part of the operating-levers CC. By

this form of construction the lock maybe conveniently attached to doorsof different thick- 5o nesses, in accordance with the length of thespindles b b', which are adapted to slip past each other in a horizontalplane, as shown in Figs. 1 and 2. By having an elongated slot in thelatch-bolt the escutcheon may be set back so as not to interfere wherewide molding is used on the door.

The angular levers C C are pivoted to the inner side of theescutcheon-plates F F,plaeed on each side of the door, as shown in Fig.2. 6c The escutcheons are provided with elongated apertures b2, whichare inclosed part way around on one side with the curbing d, leaving oneside open for the movement of the vertical end of the angularlevers.This curbing forms a cupped recess for the insertion of the ngers whenmanipulating the latch, and the detachable back plate, d', closes thebottom of the cup. The normal position of the angular levers is shown inFig. 3, the dotted 7o lines indicating the opposite position, the backplate, d', being partly broken away in this gure, the contour beingdotted in.

This construction and arrangement provide a very simple and convenientlatch, one that can be operated from either side with the same facility,all the parts being flush with the level of the door, so that the sameare free to slide clear into the jarnb and entirely out of the Way.

Having thus described my invention,what I claim as new, and desire tosecure by Letters Patent, is-

In a latch for sliding doors, the combination, with the pivotedlatch-bolt B, provided with the elongated aperture ct,of theescutchcon-plates F F', provided with elongated apertures b2, andangular lever or levers C C', provided with the spindles b b, wherebysaid latch is raised from a locked position, substan- 9o tially as setforth.

JOHN R. SCOTT.

Witnesses:

L. M. FREEMAN, J. B. DoNALsoN.

